| CdTe量子点的微波合成及其在双光子显微成像中的应用 |
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| 引用本文： | 杜婕,王胜江,吴拥中,郝霄鹏,徐成伟,赵显,于晓强.CdTe量子点的微波合成及其在双光子显微成像中的应用[J].功能材料,2012,43(15):2035-2039. |
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| 作者姓名： | 杜婕 王胜江 吴拥中 郝霄鹏 徐成伟 赵显 于晓强 |
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| 作者单位： | 1. 山东大学晶体材料国家重点实验室,山东济南,250100
2. 山东大学第二附属医院检验医学部,山东济南,250100 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目，国家自然科学基金资助项目，山东省自然科学基金资助项目，山东省科技发展计划资助项目 |
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| 摘 要： | 采用微波辐射加热的方法,以亚碲酸钠(Na2TeO3)作碲源,以谷胱甘肽(GSH)作稳定剂,在水相中合成出高质量的CdTe量子点。所合成量子点的发射波长从515～630nm可调,荧光量子产率(PLQYs)最高达95%。利用X射线粉末衍射(XRD)、高分辨透射电镜(HRTEM)、紫外-可见吸收光谱(UV-Vis)和荧光发射光谱(PL)等技术表征产物的物相结构和光学性质。用双光子激发荧光法研究CdTe量子点的双光子吸收性质。用双光子激发荧光成像技术,以发红光的CdTe量子点作为双光子荧光探针成功标记了人肺腺癌细胞(A549)。
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| 关 键 词： | 微波辐射 CdTe量子点 双光子吸收截面 细胞成像 |
Microwave synthesis of CdTe quantum dots and its two-photon fluorescence imaging application |
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| DU Jie,WANG Sheng-jiang,WU Yong-zhong,HAO Xiao-peng,XU Cheng-wei,ZHAO Xian,YU Xiao-qiang.Microwave synthesis of CdTe quantum dots and its two-photon fluorescence imaging application[J].Journal of Functional Materials,2012,43(15):2035-2039. |
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| Authors: | DU Jie WANG Sheng-jiang WU Yong-zhong HAO Xiao-peng XU Cheng-wei ZHAO Xian YU Xiao-qiang |
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| Affiliation: | 1(1.State Key Laboratory of Crystal Materials,Shandong University,Ji’nan 250100,China; 2.Department of Laboratory Medicine,The Second Hospital of Shandong University,Ji’nan 250100,China) |
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| Abstract: | GSH-stabilized high-luminescent CdTe quantum dots(QDs) were prepared using Na2TeO3 as the Te source by microwave irradiation in aqueous phase presented.The emission peak of CdTe QDs ranged from 515-630nm and the high quantum yield reaches as high as 95%.The obtained CdTe QDs were characterized by X-ray diffraction pattern(XRD),high resolution transmission electron microscopy(HRTEM),UV-Vis absorption and photoluminescence(PL) spectra.The two-photon absorption property of GSH-CdTe QDs was investigated using the two-photon excitation fluorescence measurement.In addition,human lung carcinoma cells(A549) were labeled using red-emitting GSH-CdTe QDs as a fluorescence probe by two-photon fluorescence imaging technique. |
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| Keywords: | microwave irradiation CdTe QDs two-photon absorption cross section cell imaging |
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